Out-of-bounds Write Affecting samba package, versions *


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.09% (40th percentile)

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  • Snyk IDSNYK-DEBIAN10-SAMBA-5954693
  • published11 Oct 2023
  • disclosed7 Nov 2023

Introduced: 11 Oct 2023

CVE-2023-4154  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

There is no fixed version for Debian:10 samba.

NVD Description

Note: Versions mentioned in the description apply only to the upstream samba package and not the samba package as distributed by Debian. See How to fix? for Debian:10 relevant fixed versions and status.

A design flaw was found in Samba's DirSync control implementation, which exposes passwords and secrets in Active Directory to privileged users and Read-Only Domain Controllers (RODCs). This flaw allows RODCs and users possessing the GET_CHANGES right to access all attributes, including sensitive secrets and passwords. Even in a default setup, RODC DC accounts, which should only replicate some passwords, can gain access to all domain secrets, including the vital krbtgt, effectively eliminating the RODC / DC distinction. Furthermore, the vulnerability fails to account for error conditions (fail open), like out-of-memory situations, potentially granting access to secret attributes, even under low-privileged attacker influence.

CVSS Scores

version 3.1